Home / 3,221.72-4,831.79-1,246.68

Finding the Fourth Proportional to 3,221.72, 4,831.79 and 1,246.68

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Solution

The fourth proportional to 3,221.72, 4,831.79 and 1,246.68 is: 1,869.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,221.72 : 4,831.79 = 1,246.68 : x
  2. Step 2: Convert to fraction form
    3,221.72/4,831.79 = 1,246.68/x
  3. Step 3: Cross multiply
    3,221.72x = 4,831.79 × 1,246.68
  4. Step 4: Simplify right side
    3,221.72x = 6,023,689.72
  5. Step 5: Solve for x
    x = 6,023,689.72/3,221.72
  6. Step 6: Final answer
    x = 1,869.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.